Autonomous Taxis Could Be Cheaper Than Walking

ARK believes SAVs will not only be transformative from a public health perspective, but that they will deliver more value to consumers than any other form of transportation as measured by cost and convenience. ARK’s research shows that even walking–assuming a $3.99 Big Mac’s worth of calories burned–would be more expensive than using autonomous taxis.

ARK expects roughly a 30-fold increase in demand² for mobility as a service in the early 2020s as autonomous taxis prove both more convenient and less expensive than today’s livery offerings. Further, autonomous vehicles will expand mobility to people previously unable to drive themselves, like the elderly, the blind, unlicensed teens, and lower income families unable to afford car ownership. As a result, ARK research suggests that vehicle miles travelled could increase by roughly 20%.³

However, autonomous vehicles could also enhance other modes of public transportation, much like ZipcarCAR customers use their rented cars for the last mile home. As shown in the first “Price per Mile” graph above, planes, buses, trains, and ferries that transport large volumes of people at once will still be cheaper than autonomous taxis in many situations, and the new inexpensive last-mile solution that shared autonomous vehicles will provide may even heighten demand for some of those services.

Lastly, research shows that when charged for services in small unit increments, such as per mile, people tend to consume less.⁴ So while choosing to auto-taxi versus walk may be a more popular decision for some, we think walking will always have it’s place along with other forms of public transit.